Add order endpoint

[PREMIUM-224]

mailpoet/lib/Automation/Integrations/MailPoet/Analytics/Endpoints/OrderEndpoint.php

@@ -0,0 +1,48 @@
+<?php declare(strict_types = 1);
+
+namespace MailPoet\Automation\Integrations\MailPoet\Analytics\Endpoints;
+
+use MailPoet\API\REST\Request;
+use MailPoet\API\REST\Response;
+use MailPoet\Automation\Engine\API\Endpoint;
+use MailPoet\Automation\Engine\Exceptions\NotFoundException;
+use MailPoet\Automation\Engine\Storage\AutomationStorage;
+use MailPoet\Automation\Integrations\MailPoet\Analytics\Entities\Query;
+use MailPoet\Automation\Integrations\MailPoet\Analytics\Factories\OrderControllerFactory;
+use MailPoet\Validator\Builder;
+
+class OrderEndpoint extends Endpoint {
+
+  /** @var AutomationStorage */
+  private $automationStorage;
+
+  /** @var OrderControllerFactory */
+  private $orderControllerFactory;
+
+  public function __construct(
+    AutomationStorage $automationStorage,
+    OrderControllerFactory $orderControllerFactory
+  ) {
+    $this->automationStorage = $automationStorage;
+    $this->orderControllerFactory = $orderControllerFactory;
+  }
+
+  public static function getRequestSchema(): array {
+    return [
+      'id' => Builder::integer()->required(),
+      'query' => Query::getRequestSchema(),
+    ];
+  }
+
+  public function handle(Request $request): Response {
+    $automation = $this->automationStorage->getAutomation(absint($request->getParam('id')));
+    if (!$automation) {
+      throw new NotFoundException(__('Automation not found', 'mailpoet'));
+    }
+
+    $query = Query::fromRequest($request);
+    $controller = $this->orderControllerFactory->getOrderController();
+    $result = $controller->getOrdersForAutomation($automation, $query);
+    return new Response($result);
+  }
+}